Magnetic Control of Ferroelectric Polarization in a Self-formed Single Magnetoelectric Domain of Multiferroic Ba3NbFe3Si2O14

Abstract

We have discovered strong magnetoelectric (ME) effects in the single chiral-helical magnetic state of single-crystalline langasite Ba3NbFe3Si2O14 that is crystallographically chiral. The ferroelectric polarization, predominantly aligned along the a axis below the Neel temperature of ~27 K, changes in a highly non-linear fashion in the presence of in-plane magnetic fields (H) perpendicular to the a axis (H//b*). This ME effect as well as smaller ME effects in other directions exhibit no poling dependence, suggesting the presence of a self-formed single ME domain. In addition, these ME effects accompany no-measurable hysteresis, which is crucial for many technological applications.

References in corpus (9)

• Direct transition from a disordered to a multiferroic phase on a triangular lattice
• Single domain magnetic helicity and triangular chirality in structurally enantiopure Ba3NbFe3Si2O14
• CuBr2-A New Multiferroic Material with High Critical Temperature
• Magnetic and dielectric properties in the langasite-type compounds : A3BFe3D2O14 with A=Ba, Sr, Ca, B=Ta, Nb, Sb and D=Ge, Si
• Parity Broken Chiral Spin Dynamics in Ba${}_3$NbFe${}_3$Si${}_2$O${}_{14}$
• Helical spin-waves, magnetic order, and fluctuations in the langasite compound Ba3NbFe3Si2O14
• Role of Antisymmetric Exchange in Selecting Magnetic Chirality in Ba${}_3$NbFe${}_3$Si${}_2$O${}_{14}$
• THz Magneto-electric atomic rotations in the chiral compound Ba${}_3$NbFe${}_3$Si${}_2$O${}_{14}$
• Dzyaloshinsky-Moriya driven helical-butterfly structure in Ba3NbFe3Si2O14

Cited by in corpus (6)

• Effect of divalent Ba cation substitution with Sr on coupled multiglass state in the magnetoelectric multiferroic compound Ba3NbFe3Si2O14
• Helical bunching and symmetry lowering inducing multiferroicity in Fe langasites
• Crystal Symmetry Lowering in Chiral Multiferroic Ba${}_3$TaFe${}_3$Si${}_2$O${}_{14}$ observed by X-Ray Magnetic Scattering
• Phonons in the multiferroic langasite Ba$\_3$NbFe$\_3$Si$\_2$O$\_14$ : evidences for symmetry breaking
• The effect of local distortions on magnetic and magnetoelectric properties of paramagnetic Pr3Ga5SiO14 langasite
• Resolving the local distortions of Ising-like moments in magnetoelectric Ho-doped langasite